Dynamic mechanical behavior and thermal properties of microcrystalline cellulose (MCC)-filled nylon 6 composites

Alper Kiziltas, Douglas J. Gardner, Yousoo Han, Han Seung Yang

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The dynamic mechanical behavior and thermal properties of nylon 6 composites containing from 2.5 wt.% to 30 wt.% MCC were investigated using differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA) and thermogravimetric analysis (TGA). The DSC results indicated that there was no consistent or significant change in the glass transition (T g), melting temperature (Tm) and crystallization temperature (Tc) of the composites with the addition of MCC. The DSC results also indicated that the crystallinity (Xc) decreased with high MCC loading level (more than 20 wt.%) because of the inability of polymers chains to be fully incorporated into growing crystallinity lamella. With increasing MCC content, storage modulus from DMTA improved because of the reinforcing effect of the MCC. The tan δ peak values from DMTA were not significantly changed as the MCC content increased. DMTA also indicates that the magnitude of the tan δ maximum peak of MCC filled composites was significantly decreased around the glass transition temperature. Thermogravimetric analysis also indicated that the MCC did not show significant initial degradation under 300 °C, which implies thermal stability so that MCC-filled composites could be used for high temperature circumstances, like in "under the hood" applications in the automobile industry.

Original languageEnglish (US)
Pages (from-to)38-43
Number of pages6
JournalThermochimica Acta
Issue number1-2
StatePublished - May 20 2011


  • Differential scanning calorimetry (DSC)
  • Dynamic mechanical thermal analysis (DMTA)
  • Microcrystalline cellulose (MCC)
  • Nylon 6
  • Thermogravimetric analysis (TGA)


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